Your browser doesn't support javascript.
loading
Biodiversity loss impacts top-down regulation of insect herbivores across ecosystem boundaries.
Wyckhuys, Kris A G; Pozsgai, Gabor; Ben Fekih, Ibtissem; Sanchez-Garcia, Francisco J; Elkahky, Maged.
Afiliación
  • Wyckhuys KAG; Chrysalis Consulting, Danang, Viet Nam; Institute for Plant Protection, China Academy of Agricultural Sciences (CAAS), Beijing, China; School of Biological Sciences, University of Queensland, Saint Lucia, Australia; Food and Agriculture Organization (FAO), Rome, Italy. Electronic address: k.wyckhuys
  • Pozsgai G; cE3c - Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, University of the Azores, Angra do Heroísmo, Portugal.
  • Ben Fekih I; Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium.
  • Sanchez-Garcia FJ; Instituto Murciano de Investigacion y Desarrollo Agrario y Alimentario (IMIDA), Murcia, Spain.
  • Elkahky M; Food and Agriculture Organization (FAO), Rome, Italy.
Sci Total Environ ; 930: 172807, 2024 Jun 20.
Article en En | MEDLINE | ID: mdl-38679092
ABSTRACT
Biodiversity loss, as driven by anthropogenic global change, imperils biosphere intactness and integrity. Ecosystem services such as top-down regulation (or biological control; BC) are susceptible to loss of extinction-prone taxa at upper trophic levels and secondary 'support' species e.g., herbivores. Here, drawing upon curated open-access interaction data, we structurally analyze trophic networks centered on the fall armyworm Spodoptera frugiperda (Lepidoptera Noctuidae) and assess their robustness to species loss. Tri-partite networks link 80 BC organisms (invertebrate or microbial), 512 lepidopteran hosts and 1194 plants (including 147 cultivated crops) in the Neotropics. These comprise threatened herbaceous or woody plants and conservation flagships such as saturniid moths. Treating all interaction partners functionally equivalent, random herbivore loss exerts a respective 26 % or 108 % higher impact on top-down regulation in crop and non-crop settings than that of BC organisms (at 50 % loss). Equally, random loss of BC organisms affects herbivore regulation to a greater extent (13.8 % at 50 % loss) than herbivore loss mediates their preservation (11.4 %). Yet, under moderate biodiversity loss, (non-pest) herbivores prove highly susceptible to loss of BC organisms. Our topological approach spotlights how agriculturally-subsidized BC agents benefit vegetation restoration, while non-pest herbivores uphold biological control in on- and off-farm settings alike. Our work underlines how the on-farm usage of endemic biological control organisms can advance conservation, restoration, and agricultural sustainability imperatives. We discuss how integrative approaches and close interdisciplinary cooperation can spawn desirable outcomes for science, policy and practice.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Herbivoria Límite: Animals Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Biodiversidad / Herbivoria Límite: Animals Idioma: En Revista: Sci Total Environ Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos